Fire-pot for stoves and furnaces.



W. GLERKIN, FIRE POT FOB. STOVES AND FURNAGES.

APPLIOATION FILED OCT. 24, 1910.

1,006,466, Patented 0013. 24, 1911.

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I lllllllllllllllllllllll INVENTOR- W. GLERK'IN. FIRE POT FOR. STOVESAND FURNACES. APPLIOATION FILED 001324, 1910.

1,006,466. Patented Oct. 24, 1911.

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unirnn srA'rns PATENT OFFICE.

WILLIAM CLERKIN, OF AKRON, OHIO, ASSIGNOR TO THE TAPLIN-RICE, GLERKINCOMPANY, OF AKRON, OHIO, A CORPORATION OF OHIO.

FIRE-POT FOR STOVES AND FURNACES.

nooeaee.

T 0 all whom it may concern:

Be it known that 1, WILLIAM GLERKIN, a citizen of the United States,residing at Akron, in the county of Summit and State of Ohio, haveinvented new and useful Improvements in Fire-Pots for Stoves andFurnaces, of which the following is a specification.

This invention relates to improvements in firepots for stoves andheating furnaces, and its principal object is to provide a firepotpreferably constructed as a unitary article, having the wall thereofsinuous to provide alternating convex and concave portions throughoutthe wall, with the concave portions terminating in said convex portions,whereby any expansion or contraction due to uneven heating and coolingwill be taken care of or be absorbed by the wall itself, due to theresiliency or yieldability imparted to it by its sinuous shape, therebyeliminating to a great extent all danger of cracking and breaking.

A further object of the invention is to evenly distribute a supply offresh air to the burning fuel contained in the fire-pot; and toaccomplish this effectually the wall of the fire-pot is provided atselected intervals with a plurality of upwardly-extending air-cellscored or otherwise formed in said wall, with the wall surrounding eachcell convex in contour and projecting beyond the normal inner and outerfaces of the fire-pot wall. Said cells preferably terminate at pointsremote from the top of said fire-pot wall and are open at the bottom toestablish communication with the interior of an ash-pit. Further, theinner wall of each cell is provided with an upwardlyextending slot topermit air passing upwardly from the ash-pit through the cells to escapein the body of the stove or furnace, thus distributing a fresh supply ofair to the burning fuel.

Experience has shown that the best results are obtained by placing theair cells at the apices of the convex and concave portions and others atpoints where the convex portions terminate in the concave. Thisdistribution of air-cells also serves to increase the elasticity oryieldability of the fire-pot wall by introducing in said wall aplurality of air cells, one of the walls of each of which is slotted topermit the walls bounding the slot to move toward or away fromSpecification of Letters Patent.

Application filed October 24, 1910.

Patented Oct. 24:, 1911.

Serial No. 588,732.

each other under the strain of the undue expansion or contraction,whereby the strain of expansion or contraction is taken care of orabsorbed by the wall itself, thus prolonging the life of the fire-potand increasing its effectiveness.

With the foregoing and other objects in View, the invention consists inthe novel construction, combination and arrangement of partsconstituting the invention to be hereinafter specifically described andillustrated in the accompanying drawings which form a part hereofwherein is shown the preferred embodiment of the invention, but it is tobe understood that changes, variations and modifications can be resortedto which come within the scope of the claims hereunto appended.

In the drawings, in which similar reference numerals indicate like partsin the different figures: Figure 1 is a view in perspective of afire-pot constructed in accordance with this invention. Fig. 2 is ahorizontal, sectional view of a portionof the fire-pot wall on line A ofFig. 1; and, Fig. 3 is a vertical, sectional view of a portion of thefire-pot wall on line B of Fig. 1, together with a sectional View of aportion of an ash-pit used therewith.

Before giving a detailed description of the drawings, it may be statedthat the firepot is usually, although not necessarily, constructedrectangular in form and is especially adapted for use in large heatingdevlces.

Referring to the drawings in detail, the reference numeral 1 denotes thewall of the fire-pot generally, preferably having the outline of aninverted, hollow frustum of an elongated pyramid and sinuous in contourto provide inwardly-extending convex portions 2 and outwardly-projectingconcave portions 3 throughout the wall, with the inwardly-extendingconvex portions 2 terminating at 4: in said outwardly-projecting concaveportions 3. This wall is provided at selected intervals with tubularair-cells 5, formed therein open at their lower ends and extendingupwardly from the lower portion of the wall 1 and terminating below theupper portion thereof. The air-cells 5 are surrounded by walls 6 and 7,convex in out line, causing the walls 6 to project or bulge beyond thenormal outer face of the wall 1, and the walls 7 to correspondinglybulge inwardly, whereby there is imparted to the lateral faces of thewall of the fire-pot in addition to its sinuosity, a plurality ofupwardly extending ribs, giving the said wall a corrugated or ribbedappearance. I prefer to place these air-cells at the apices of theconvex portions and the concave portions and at points where the convexportions terminate in the concave portions.

pair of approximately parallel inner. and

outer upwardly-extending flanges 1O and'll to provide between thema'groove constituting a seat 9 to receive the lower portion of aradiator (not shown). The seat 9 and flanges l0 and 11 are formedsinuous throughout to correspond and register with the sinuosities ofthe wall 1. At selected portions of the body of the fire-pot the seat 9is laterally extended andprovided with openings 12 smaller than theseat, to-leavev ledges 13 on which corresponding portions ofthe radiatormay seat. The outerflange 11 is outwardly-extended at these points andsurrounds the ledges and forms tight-joints with corresponding portionsof the radiator.

The fire-pot is commonly mounted on an ash-pit 14, a. portion of whichis shown in V Fig. 3,,wherein the upper portion is shown provided with aseat 15, for the fire-pot and surrounded by' a marginal flange 16 toconstitute a combined guiding and holding member. Extending inwardlyfrom the seat 15 is a horizontal flange 17 provided alternating convexand concave portions throughout the wall, said convex portionsterminating in said concave portions, each of said portions provided,with an air-cell communicating with the interior of the firepot andfurther adapted to communicate with. the ash-pit. V

2. A stove or heating furnaceembodying an-ashpit, and a fire-pot havingthe wall thereof sinuous in cross-section to provide alternating convexand concave portions throughout the wall, said convex portionsterminating in said concave portions, said wall provided "at the apicesof the said convex and concave portions and at the junction where saidconvex portions meet said concave portions with upwardly-extendingair-cells communicating with the interior of the fire-pot, and furtheradapted to communicate with the ash-pit.

At the upper portion of the wall 1 are a 3. A stove or heating furnaceembodying an ash-pit, and a fire-pot having the wall thereof sinuous incross-section to provide alternating convex and concave portionsthroughout the wall, said convex portions terminating in said concaveportions, each of said portions provided with an air-cell communicatingwith the interior of the firepot and adaptedto communicate with saidash-pit, and a seat for a radiator at the upper port-ion of the wall,sinuous in outline, corresponding to the sinuosity of the wall of saidfire-pot, said seat provided with a marginal flange.

4. A stove or heating furnace embodying an ash-pit, and a fire-pothaving the wall thereof sinuous in cross-section to provide alternatingconvex and concave portions throughout the wall, said convex portionsterminating in said concave portions, each of said portions providedwith pairs of ribs, one of the ribs of each pair projecting outwardly,constituting a convex portion on the outer face of the wall of saidfire-pot, and the other projecting inwardly constituting a similarparallel portion on the inner face of said wall, said ribs providingair-cells in said wall, said air-cells adapted to communicate at one endwith the ash-pit and the inwardly-extending ribs of each pair providedwith slots establishing communication, between the ash-pit and theinterior of the firepot.

5. A stove or heating furnace embodying an ash-pit, and a fire-pothaving the wall thereof sinuous in cross-section to provide alternatingconvex and concave portions throughout the wall, said convex portionsterminating in said concave portions, each of said portions providedwith pairs of ribs, one of the ribs of each pair projecting outwardlyforming a convex portion on the outer face of said wall and thecorresponding rib projecting inwardly to provide a similar parallelportion on the inner face of said wall, said ribs providing room forair-cells in said wall, said air-cells adapted to communicate at oneendwith the ashpit and the inwardly-extendingribs of each pair providedwith slots for establishing communication between the ash-pit and theinterior of the fire-pot, said .wall'further provided in the upperportion thereof with a seat corresponding in contour to the sinuosity ofthe said fire-pot for the reception of a radiator.

In testimony whereof I have'hereun'to set myfhand in presence of twosubscribing witnesses.

WILLIAM CLERK'IN." Witnesses: .7

A. E. KLINY, C. E. HUMPHREY.

: Copies of this patent may-be obtained for-five cents each, byaddressing the Commissioner of Patents,

Washington, D. G.

